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immersive sound

Howdy,

 The wiring of both sides of an amp to one "rear"
speaker has been around for ages. I wired up my
automobile 8 track in 1972 for the rear channel. What
it does is play the "differences" between right and
left. Anything panned exactly to center cancels out.
It is commonly used to test amplifiers that simulate
other amplifiers. You wire it up, play the same
material through both amps and if the speaker makes
any sound, you don't have a perfect emulation of the
amp being copied. The fellow that builds Carver amps
once took a challenge to emulate a certain high $ tube
home stereo amp. He locked himself into a hotel room
for 24 hours and came out. They did the test and no
sound came from the speaker until they got down into
the 1 or 2 ohm impedance range. At that point, it
didn't exactly match the original because the speaker
put out some noise.
Rig (trivia mode)


 
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